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Pollucite
Pollucite

Ruby
Ruby



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Pollucite
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Ruby

Pollucite and Ruby Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Readily soluble in HF
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.86-2.94
3.97-4.05
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Conchoidal
1.6 Cleavage
None observed
No true cleavage
1.7 Mohs Hardness
6.5-7
9
1.8 Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Al 2 O 3

Pollucite and Ruby Chemical Formula

While comparing Pollucite and Ruby physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Pollucite and Ruby chemical formula.

  • Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Ruby- Al 2 O 3

Pollucite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pollucite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pollucite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Pollucite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.